diff options
| author | Pedro Alves <palves@redhat.com> | 2012-03-23 20:26:14 +0000 |
|---|---|---|
| committer | Pedro Alves <palves@redhat.com> | 2012-03-23 20:26:14 +0000 |
| commit | 485f1ee4f6b7f8ae37640b65966ad82eeced8f9a (patch) | |
| tree | db04dcc3f64533d3a6baf77351f08c328955f3cd /gdb/gdbserver | |
| parent | f24fcb9dad8d6883b0f2dfe302c87557aae3bd1e (diff) | |
| download | gdb-485f1ee4f6b7f8ae37640b65966ad82eeced8f9a.zip gdb-485f1ee4f6b7f8ae37640b65966ad82eeced8f9a.tar.gz gdb-485f1ee4f6b7f8ae37640b65966ad82eeced8f9a.tar.bz2 | |
2012-03-23 Pedro Alves <palves@redhat.com>
* linux-low.c (read_one_ptr): Read the inferior's pointer through
a variable whose type size is the same as the inferior's pointer
size.
Diffstat (limited to 'gdb/gdbserver')
| -rw-r--r-- | gdb/gdbserver/ChangeLog | 6 | ||||
| -rw-r--r-- | gdb/gdbserver/linux-low.c | 26 |
2 files changed, 30 insertions, 2 deletions
diff --git a/gdb/gdbserver/ChangeLog b/gdb/gdbserver/ChangeLog index 155dbb1..d141bac 100644 --- a/gdb/gdbserver/ChangeLog +++ b/gdb/gdbserver/ChangeLog @@ -1,3 +1,9 @@ +2012-03-23 Pedro Alves <palves@redhat.com> + + * linux-low.c (read_one_ptr): Read the inferior's pointer through + a variable whose type size is the same as the inferior's pointer + size. + 2012-03-21 Thomas Schwinge <thomas@codesourcery.com> * linux-arm-low.c (arm_stopped_by_watchpoint): Use siginfo_t instead of diff --git a/gdb/gdbserver/linux-low.c b/gdb/gdbserver/linux-low.c index 4734f15..2dc903d 100644 --- a/gdb/gdbserver/linux-low.c +++ b/gdb/gdbserver/linux-low.c @@ -5428,8 +5428,30 @@ get_r_debug (const int pid, const int is_elf64) static int read_one_ptr (CORE_ADDR memaddr, CORE_ADDR *ptr, int ptr_size) { - *ptr = 0; - return linux_read_memory (memaddr, (unsigned char *) ptr, ptr_size); + int ret; + + /* Go through a union so this works on either big or little endian + hosts, when the inferior's pointer size is smaller than the size + of CORE_ADDR. It is assumed the inferior's endianness is the + same of the superior's. */ + union + { + CORE_ADDR core_addr; + unsigned int ui; + unsigned char uc; + } addr; + + ret = linux_read_memory (memaddr, &addr.uc, ptr_size); + if (ret == 0) + { + if (ptr_size == sizeof (CORE_ADDR)) + *ptr = addr.core_addr; + else if (ptr_size == sizeof (unsigned int)) + *ptr = addr.ui; + else + gdb_assert_not_reached ("unhandled pointer size"); + } + return ret; } struct link_map_offsets |